import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
import Welcome from "./components/Welcome"
import Users from "./components/user/Users"
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { path: '/home',
     component: Home,
     // 路由重定向
     redirect: '/welcome',
    //  子路由
     children: [
       { path:'/welcome', component:Welcome},
       { path:'/users', component:Users},
       { path:'/rights', component: Rights},
       { path:'/roles', component: Roles}
      ]
     }
  ]
})
  
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //     next()  放行    next('/login')  强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
